Astatine :
astatine
English Meaning :
(Noun : A highly unstable radioactive element (the heaviest of the halogen series)
(Noun : A highly unstable radioactive element (the heaviest of the halogen series)
Example : The halogens are a group of chemical elements that includes fluorine, chlorine, bromine, iodine, and astatine .
The halogens are a group of chemical elements that includes fluorine, chlorine, bromine, iodine, and astatine .
